Cow’s Milk Protein-Specific Immunoglobulin E (IgE) Antibody, Serum
This test measures the level of cow’s milk-specific antibodies (IgE) in your blood. IgE antibodies can indicate an allergic reaction to cow’s milk.
["Assesses potential cow’s milk allergy through blood testing."]
Key facts at a glance
- LOINC
- 7259-5
- Short code
- Cow Milk BasoBnd Ab Qn
- Synonyms
- Cow Milk BasoBnd Ab Qn
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- lhr
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
What Does This Test Measure?
The test detects cow’s milk-specific immunoglobulin E (IgE) antibodies in your serum. IgE is a type of antibody that your immune system produces in response to allergens, such as cow’s milk proteins. This test helps identify if your body has developed an allergic reaction to cow’s milk.
Why Might You Need This Test?
A doctor may recommend this test if you suspect a cow’s milk allergy, experience symptoms like hives, digestive issues, or breathing difficulties after consuming cow’s milk, or if you’re planning to introduce cow’s milk into your diet for the first time.
How Is the Test Performed?
A blood sample is drawn from a vein in your arm. The sample is then sent to a lab for analysis to measure the specific IgE antibodies against cow’s milk proteins.
What Are Common Symptoms of Cow’s Milk Allergy?
Symptoms can vary widely and may include skin reactions (like rashes or eczema), digestive problems (such as vomiting, diarrhea, or bloating), respiratory issues (like wheezing or difficulty breathing), or in severe cases, anaphylaxis. Symptoms can occur soon after consuming cow’s milk or may take hours to appear.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: Understanding Your Results
Short name
IgE to Cow’s Milk (Serum)
Frequently asked questions
If your test results show elevated levels of cow’s milk-specific IgE antibodies, it suggests a possible allergy. However, this does not confirm a diagnosis—other tests, like skin prick tests or elimination diets, may be needed. Always consult your healthcare provider for interpretation and next steps.
Symptoms of a cow’s milk allergy can appear anywhere from minutes to several hours after ingestion. Immediate reactions (like swelling, difficulty breathing, or anaphylaxis) often occur within 15–30 minutes, while delayed reactions (like digestive issues) may take longer.
A positive IgE test indicates a potential allergy but does not always mean you cannot safely consume cow’s milk. Some people with mild allergies may tolerate small amounts without issues. Always follow your doctor’s advice and consider working with an allergist to manage your diet safely.
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy